"I brought fun by the gallon to our pal Jimmy Fallon," the "Gutfeld!" [and self-proclaimed king of late night] said on Friday night's monologue. "It went so well all the way home I could not stop talking about it with my Uber driver [displaying a picture of "Late Show" host Stephen Colbert.

Jimmy Fallon joked and laughed his way through a Tonight Show interview with Fox News late-night rival Greg Gutfeld, who recently tried to reclaim the word “Nazi” as his own.

Conservative comedian Greg Gutfeld made his debut appearance on "The Tonight Show" with Jimmy Fallon Thursday, Aug. 7, creating a rare connection between the largely conservative voices at Fox and a late-night show that doesn't mince words on Trump.